If the stones are drilled, we state that in the description. Please refer to mm ruler below, if unfamiliar with millimeter. Items in photos enlarged to show detail, try to adjust to get picture close. If a lot or pairs, try to get the picture to represent the quality and color per our monitor not necessarily the quantity, see desc. Stones may be lighter or darker or vary in color hue. Faceted and cabbed stones can vary in size width and dome, most not calibrated.Tips : If buying a pair of cut gems, check out other best similar single stones for a 3 stone piece set.